ES2542253A1 - Gas burner, gas burner arrangement, cooking point, and cooking (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

The invention relates to a gas burner (5) for a cooking point (2), with a gas shut-off valve (44), with a burner housing (7) that is fixable to a gas supply conduit (8) of the gas burner (5), and with a burner head (6) movably relative to the burner housing (7), where the burner head (6) is movable from an open position to a position of closing to alternately open and close the gas shut-off valve (44), where the burner head (6) is prestressed in the direction of the closing position by means of a spring device (33), and where the burner housing ( 7) and/or the burner head (6) has at least one primary air supply opening (52) for supplying primary air to a mixing space (41) of the gas burner (5). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

GAS BURNER, GAS BURNER DISPOSITION, COOKING POINT, AND KITCHEN

The present invention refers to a gas burner, an arrangement of gas burners, a cooking point, and a kitchen.

Patent application DE 103 55 455 A1 describes a cooking point with a plurality of gas burners. Each gas burner has a movable burner head with respect to a burner housing. Each gas burner is assigned a gas shut-off valve that can be closed or opened alternately by moving the burner head. The mixture of combustible gas and primary air takes place simultaneously for several gas burners, directly next to a common gas supply conduit of the gas burners.

Given this background, the present invention solves the technical problem of providing an improved gas burner.

Therefore, a gas burner is proposed for a cooking point, with a gas shut-off valve, with a burner housing that can be attached to a gas supply duct of the gas burner, and with a movable burner head relative to the burner housing. To alternatively open and close the gas shut-off valve, the burner head is movable from an open position to a closed position, where the burner head is prestressed in the direction of the closed position by means of a spring device, and where The burner housing and / or the burner head has at least one primary air supply opening for supplying primary air to a gas burner mixing space.

Since the primary air supply opening is provided directly next to the gas burner, in comparison with the known arrangement in which the mixture of primary air-fuel gas already mixed is supplied to the gas burner through a supply line of gas, it is avoided that, while a closed gas shut-off valve, combustible gas goes out without being used next to a Venturi nozzle provided next to the common gas supply conduit.

According to one embodiment, the gas burner has a thermal element for flame control.

The thermal element is coupled with a gas regulator valve of the gas burner, so that, when the burner flame goes out, the gas regulator valve is closed, so that no more combustible gas flows to the gas burner. The gas burner may also have an ignition element to ignite the primary air-combustible gas mixture.

According to another embodiment, the burner housing is configured to wrap the gas supply conduit, at least partially.

The burner casing has at least two gripping arms arranged opposite to each other, which wrap the gas supply conduit preferably in shape drag.

According to another embodiment, the burner housing is immobilizable next to the gas supply conduit.

In this way, quick and easy assembly of the burner housing is possible.

According to another embodiment, the burner head has a support surface for placing a container of cooking product on the gas burner.

The support surface is in particular a front surface of the burner head, thus being able to dispense with an additional pot holder.

According to another embodiment, when the cooking product container is placed on the support surface, the burner head is movable from the closed position to the open position against a spring force of the spring device.

In this way, the gas shut-off valve is easily opened by placing the cooking product container on the burner head.

According to one embodiment, when the cooking product container is removed from the support surface, the burner head is movable from the open position to the closed position by the spring device.

In this way, the gas burner goes out when the cooking product container is removed, so that the burner flame goes out. Optionally, a damping or delay element may be provided, which, upon removal of the cooking product container from the burner head, leaves the gas shut-off valve in the open position for a predetermined period of time, for example, during some fractions of a second and a second, preferably for at least 1, 2 or 3 seconds, so that the gas supply is not cut immediately when the cooking product container is removed from the gas burner. The delay element retards or slows the automatic movement of the burner head from the open position to the closed position, so that the gas shut-off valve closes with a temporary delay.

According to another embodiment, the gas shut-off valve has a valve body that is housed in the burner head, at least by sections, where the valve body has at least one radially arranged fuel gas inlet opening.

The valve body is preferably tubular, and is housed in an injector holder of the gas burner, and may be screwed into the injector holder. A gas burner gas injector is preferably housed in the valve body. The gas injector is configured to inject combustible gas into a gas burner mixing space.

According to another embodiment, the gas shut-off valve has a valve seat, which corresponds to the valve body, which is provided next to the burner housing. In the closed position of the burner head, the at least one radially arranged fuel gas inlet opening is sealed by the valve seat.

The valve seat is a cylindrical bore provided in the burner housing, and in the closed position radially seals the valve body. The optional delay element is configured to slow down a movement of the burner head as it moves from the open position to the closed position, such that the at least one fuel gas inlet opening is slowly covered by the seat. valve, and the gas shut-off valve closes well slowly.

According to another embodiment, the gas burner has a pressure sensor to recognize a cooking product container supported on a support surface of the burner head.

The pressure sensor is, for example, as a plate or sheet, and preferably provides a control device with a signal concerning whether or not there is a container of cooking product placed on the gas burner. If a cooking product container is supported on the gas burner, a corresponding signal can be sent to the control device by the pressure sensor. The control device can then activate, for example, a gas burner ignition element to ignite a burner flame.

Likewise, an arrangement of gas burners for a cooking point, with at least two gas burners of the exposed type, with a gas supply conduit, and with a common gas regulating valve to regulate a volumetric gas flow is proposed. towards at least two gas burners.

As an example, the gas burner arrangement may have three or four gas burners.

According to one embodiment, the gas burner arrangement has a pressure sensor that is configured to detect a cooking product container supported on a support surface of the burner head of the gas burner, and emit an output signal. corresponding to a control device that is configured to ignite an ignition element of the gas burner to ignite a mixture of primary air-combustible gas depending on the output signal of the pressure sensor.

The pressure sensor is in effect connection with the control device, which in turn is in effect connection with the ignition element. The ignition element may be a spark plug.

According to another embodiment, the gas burner arrangement has a control device that is configured to activate the ignition elements of the gas burners to ignite a mixture of primary air-combustible gas depending on a signal from a manual switch. .

The manual switch is, for example, a push button.

Likewise, a cooking point with a gas burner of the exposed type and / or with an arrangement of gas burners of the exposed type is proposed.

In addition, a kitchen with a gas burner of the exposed type is proposed, with an arrangement of gas burners of the exposed type and / or with a cooking point of the exposed type.

The gas burner, the arrangement of gas burners, the cooking point, and the kitchen are configured for your domestic application.

Other possible implementations of the invention also comprise combinations not explicitly mentioned of features or embodiments described above, or below, in relation to the embodiments. Here, the person skilled in the art will also add particular aspects such as improvements or complements to the respective basic form of the invention.

Other configurations and advantageous aspects of the invention are the subject of the secondary claims, as well as the embodiments of the invention described below. Next, the invention is explained in more detail by means of preferred embodiments, with reference to the attached figures.

Fig. 1 shows an embodiment of a gas burner in schematic perspective view;

Fig. 2 shows the gas burner according to figure 1 in schematic exploded perspective view;

Fig. 3 shows the gas burner according to figure 1 in schematic section view;

Fig. 4 shows the gas burner according to figure 1 in another schematic section view;

Fig. 5 shows the gas burner according to figure 1 in schematic partial section view;

Fig. 6 shows an embodiment of an arrangement of gas burners in view of schematic section;

Fig. 7 shows another embodiment of a gas burner arrangement in schematic top view;

Fig. 8 shows another embodiment of a gas burner arrangement in top view; Y

Fig. 9 shows a top view of another embodiment of an arrangement of gas burners.

In the figures, the same or equal function elements have been provided with the same reference symbols, as long as nothing else is indicated.

Figure 1 shows a cooker 1 with a cooking point 2. The cooking point 2 has a cooking bowl 3 shaped like a bucket and a cooking field plate 4 arranged spaced apart from the cooking hob 3. The cooking point 2 also has a gas burner 5 with a burner head 6 and a burner casing 7. The burner head 6 is preferably movable relative to the burner casing 7. Also, the cooking point 2 has a duct of gas supply 8, to which the burner casing 7 is fixed. The gas supply conduit 8 is configured to supply a combustible gas to the gas burner 5.

Figure 2 shows the gas burner 5 in schematic exploded perspective view. The burner casing 7 has a parallelepiped shaped base body, on the underside of which two grip arms 9, 10 arranged opposite each other stand out. The burner housing 7 and the gripping arms 9, 10 are configured to wrap the gas supply conduit 8, at least partially. In particular, the grip arms 9, 10 are configured to fasten the burner housing 7 to the gas supply conduit 8. An opening 11 is provided in the gas supply conduit 8 into which a tubular connection piece 12 penetrates of the burner housing 7.

On a flat upper side 13 of the burner housing 7, a pressure sensor 14 in the form of a plate or sheet can be placed. The pressure sensor 14 is provided between the upper side 13 of the burner housing 7 and a lower side 15 of a fastener 16.

The fixing element 16 has a circular and plate-shaped base section 17, which is placed on the pressure sensor 14. From the base section 17 an annular circulating wall 18 protrudes from the upper side. On the outer side, next to the wall 18, grooves 19 and 20 are provided laterally and opposite to each other which are configured to wrap a thermal element 21 and an ignition element 22, respectively. The thermal element 21 and the ignition element 22 are insertable by quick engagement in the slots 19 and 20, respectively.

The burner head 6 is tubular in shape, and comprises a closed front side that forms a bearing surface 23 for a cooking vessel not shown. Likewise, the burner head 6 preferably has a plurality of gas injectors 24 arranged on its perimeter, of which only one is provided with a reference symbol in Figure 2. Preferably, the gas injectors 24 are arranged evenly distributed around a perimeter of the burner head 6. In a final section 25 of the burner head 6, opposite the bearing surface 23, a bore is provided. 26 that passes twice through an outer wall of the burner head 6.

Also, the gas burner 5 has an injector holder 27, which is housed in the burner head 6, at least in sections. The injector holder 27 is tubular and has a bore 28, which is coaxially arranged to the bore 26 of the burner head 6 in an assembled state in which the injector holder 27 is housed in the burner head 6. The holes 26 , 28 coaxial form a primary air supply opening 52 (Figure 1) of the gas burner 5. Preferably, two primary air supply openings 52 are arranged opposite each other. A cylindrical shoulder 29 protrudes from a front surface of the injector holder 27, which is disposed away from the burner head 6.

On the shoulder 29 a tubular valve body 30 is inserted. The valve body 30 preferably has an outer thread 31, whereby the valve body 30 is screwed into the shoulder 29 of the injector holder 27, and has at least one fuel gas inlet opening 45 arranged by the perimeter. Preferably, a plurality of such fuel gas inlet openings 45 are provided, which are preferably arranged evenly distributed over a perimeter of the valve body 30. A front surface of the base body 30 opposite the injector holder 27 is closed.

The gas burner 5 also has a gas injector 32, which is fixed to the valve body 30, in particular, it is screwed into it. The gas burner 5 also has a spring device 33, which is a helical or cylindrical spring, in particular a compression spring, and is disposed between the burner housing 7 and the injector holder 27. The valve body 30 is housed in the spring device 33. Specifically, the spring device 33 is fitted on the shoulder 29 of the injector holder 27. Next to the injector support 27, they are provided on the outer side securely facing the torsion 34 shaped of parallelepiped, of which in figure 2 only one is provided with a reference symbol. The torsion 34 locks prevent a twisting of the injector holder 27 with respect to the burner head 6.

The fixing element 16 is preferably screwed with the burner housing 7 by means of screws 35, 36. The gas burner 5 also has a cover lid 37, which is configured to rest on the cooking field plate 4. In a manner preferred, the cover lid 37 has a centrally arranged opening 38, through which the burner head 6 is guided. Also, the cover cover 37 has holes 39 and 40 through which the thermal element 21 can be driven. and the ignition element 22, respectively.

Figure 3 shows the gas burner 5 in a schematic section view. The burner head 6 with the injector holder 27 envelops a mixing space 41 of the gas burner 5. The mixing space 41 is cylindrical. The gas injector 32 is arranged next to a lower end section of the mixing space 41 such that it is configured to inject combustible gas into the mixing space 41. As also shown in Figure 3, the gas injector 32 is screwed into the valve body 30, which is in turn screwed into the injector holder 27. The spring device 33 is disposed between a contact surface 42 of the burner housing 7 and a front surface 43 of the injector holder 27.

Also, the gas burner 5 has a gas shut-off valve 44 shown in Figure 3. The gas shut-off valve 44 comprises the valve body 30, coupled with the burner head 6 through the injector holder 27, which has the at least one radially arranged fuel gas inlet opening 45. The gas shut-off valve 44 further comprises a valve seat 53 (Figure 5), which corresponds to the valve body 30, which is made as the inner wall of the connecting piece 12 that penetrates the supply duct of gas 8.

By moving the burner head 6 relative to the burner housing 7, the gas shut-off valve 44 can be moved from an open position, shown in Figures 4 and 5, to a closed position, shown in the figure 3, to close and open alternately. The burner head 6 is prestressed in the direction of the closing position by the spring device 33.

Figure 5 shows by arrows in an enlarged representation the fuel gas flow inlet in the gas injector 32 in the open position of the burner head 6, or of the gas shut-off valve 44, where the combustible gas flows into the mixing space 41. In this way, primary air is vented into the mixing space 41 through the side primary air supply openings 52, where it mixes with the combustible gas and leaves the head of burner 6 through gas injectors 24.

Figure 6 shows an arrangement of gas burners 47 with three gas burners 5, on which a cooking product container 46 is placed. When the cooking product container 46 is placed on the respective bearing surface 23 of the burners of gas 5, the burner head 6 is moved from the closed position to the open position against a spring force F33 of the spring device 33. When the cooking product container 46 is removed from the bearing surface 23, the head Burner 6 is automatically moved from the open position to the closed position by means of the spring device 33. In this way, the fuel gas supply is automatically interrupted when the cooking product container 46 is removed from the gas burners 5.

The gas burner 5 may also have an unrepresented delay element that is configured to retard the movement of the burner head 6 from the open position to the closed position such that, when the cooking product container 46 is removed of the gas burner 5 for a short time, the gas supply is not interrupted immediately, but with a temporary delay, for example, after elapsing between several fractions of a second and a second, for example, after 5 seconds. By means of the optional pressure sensor 14, the placement of the cooking product container 46 on the bearing surface 23 of the burner head 6 can be recognized.

Figure 7 shows a schematic view of another embodiment of a gas burner arrangement 47 for the cooking point 2. The gas burner arrangement 47 has at least two gas burners 5, the gas supply conduit 8 , and a common gas regulating valve 48. A volumetric flow of combustible gas to the gas burners 5 can be regulated by the gas regulating valve 48. The gas supply line 8 is branched behind the gas regulating valve 48 towards the gas burners 5. The regulating valve of Gas 48 is configured to introduce combustible gas into the gas supply conduit 8 from a main gas conduit 49. Preferably, a thermal element is assigned to each of the gas burners 5 of the gas burner arrangement 47. 21 and an ignition element 22. Also, the gas burner arrangement 47 may have a control device 50.

Figure 8 shows another embodiment of an arrangement of gas burners 47. Here, the control device 50 is in effect connection with the pressure sensors 14 of the gas burners 5, with the thermal elements 21, with the ignition elements 22, and with the gas regulating valve 48. The control device 50 is configured to ignite the corresponding ignition element 22 of the gas burner 5 to inflame the primary air-fuel gas mixture, depending on a signal of the pressure sensor 14 of one of the gas burners 5, if a cooking product container 46 is supported on the bearing surface 23 of the burner head 6 of the gas burner 5. In this way, only those are lit gas burners 5 on which the cooking product container 46 rests. The thermal elements 21 are used for flame control in the gas burners 5.

Figure 9 shows another embodiment of a gas burner arrangement 47. The gas burner arrangement 47 according to Figure 9 has a manual switch 5 51, which may be, by way of example, a pressure button or button. The control device 50 is configured to light the ignition elements 22 of the gas burners 5 to ignite the primary air-fuel gas mixture depending on a signal from the manual switch 51. In this case, all the burners of the gas 5 at a time. In gas burners 5 on which there is no support

10 no container of cooking product 46, the respective gas shut-off valve 44 is closed, so that from these gas burners 5 no mixture of primary fuel gas comes out.

Although the present invention has been described by means of embodiments, it is modifiable in various ways.

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Reference symbols

Cooker Cooking point Cooking hob Cooking field plate Gas burner Burner head Burner housing Gas supply duct Grip arm Grip arm Opening Connection piece Upper side Pressure sensor Lower side Fixing element Base section Wall Groove Groove Thermal element Ignition element Support surface Gas injector End section Drill Injector holder Drill Highlight Valve body Outer thread Gas injector Spring device Torsion-safe

35

 Screw

36

 Screw

37

Cover cap

38

Opening

39

Drill

40

Drill

41

Mixing space

42

Contact surface

43

Front surface

44

Gas shut-off valve

Four. Five

Fuel gas inlet opening

46

Cooking product container

47

Gas burner arrangement

48

Gas regulating valve

49

Main gas duct

fifty

Control device

51

Manual switch

52

Primary air supply opening

53

Valve seat

F33

Spring force

Claims (15)

one.

Gas burner (5) for a cooking point (2), with a gas shut-off valve (44), with a burner housing (7) that can be fixed to a gas supply line (8) of the burner gas (5), and with a burner head (6) movable relative to the burner housing (7), where the burner head (6) is movable from an open position to a closed position to open and close alternatively the gas shut-off valve (44), where the burner head (6) is prestressed in the direction of the closing position by means of a spring device (33), and where the burner housing (7) and / or the Burner head (6) has at least one primary air supply opening (52) for supplying primary air to a mixing space (41) of the gas burner (5).

2.

Gas burner according to claim 1, characterized in that the gas burner (5) has a thermal element (21) for flame control.

3.

Gas burner according to claim 1 or 2, characterized in that the burner housing (7) is configured to wrap the gas supply conduit (8), at least partially.

Four.

Gas burner according to one of claims 1-3, characterized in that the burner housing (7) is immobilizable next to the gas supply conduit (8).

5.

Gas burner according to one of claims 1-4, characterized in that the burner head (6) has a support surface (23) for placing a cooking product container (46) on the gas burner (5).

6.

Gas burner according to claim 5, characterized in that, when the cooking product container (46) is placed on the support surface (23), the burner head (6) can be moved from the closed position to the open position against a spring force (F33) of the spring device (33).

7.

Gas burner according to claim 5 or 6, characterized in that, when the cooking product container (46) is removed from the bearing surface (23), the burner head (6) is movable from the open position to the position of closing by means of the spring device (33).

14 8. Gas burner according to one of claims 1-7, characterized in that the gas shut-off valve (44) has a valve body (30) which is housed in the burner head (6), at least in sections , and because the valve body (30) has at least one radially arranged fuel gas inlet opening (45).

9.

Gas burner according to claim 8, characterized in that the gas shut-off valve (44) has a valve seat (53), which corresponds to the valve body (30), which is provided next to the burner housing (7), and because, in the closed position of the burner head (6), the at least one radially arranged fuel gas inlet opening (45) is sealed by the valve seat (53).

10.

Gas burner according to one of claims 1-9, characterized by a pressure sensor (14) for recognizing a cooking product container (46) resting on a support surface (23) of the burner head (6).

eleven.

Arrangement of gas burners (47) for a cooking point (2), with at least two gas burners (5) according to one of claims 1-10, with a gas supply conduit (8), and with a Gas regulating valve (48) common to regulate a volumetric flow of gas towards at least two gas burners (5).

12.

Arrangement of gas burners according to claim 11, characterized by a pressure sensor (14) which is configured to detect a cooking product container (46) resting on a bearing surface (23) of the burner head (6) of the gas burner (5), and emit an output signal corresponding to a control device (50) that is configured to ignite an ignition element (22) of the gas burner (5) to ignite a mixture of primary airgas fuel depending on the pressure sensor signal (14).

13.

Arrangement of gas burners according to claim 11, characterized by a control device (50) which is configured to activate the ignition elements (22) of the gas burners (5) to ignite a mixture of primary air-combustible gas in dependence on a signal from a manual switch (51).

fifteen

14.

Cooking point (2) with a gas burner (5) according to one of claims 1-10 and / or with a gas burner arrangement (47) according to one of claims 11-13.

fifteen.

Cooker (1) with a gas burner (5) according to one of claims 1-10, with an arrangement of gas burners (47) according to one of claims 11-13 and / or with a cooking point (2) according to claim 14.

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